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Guide to the Secure Configuration of Red Hat Enterprise Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable Core Dumps for All Users

    To disable core dumps for all users, add the following line to <code>/etc/security/limits.conf</code>, or to a file within the <code>/etc/security/...
    Rule Medium Severity
  • Disable Core Dumps for SUID programs

    To set the runtime status of the <code>fs.suid_dumpable</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w fs.suid_dumpable=...
    Rule Medium Severity
  • cobbler_use_cifs SELinux Boolean

    default - Default SELinux boolean setting.
    on - SELinux boolean is enabled.
    off - SELinux boolean is disabled.
    Value
  • Set Daemon Umask

    The file <code>/etc/init.d/functions</code> includes initialization parameters for most or all daemons started at boot time. Many daemons on the sy...
    Rule Unknown Severity
  • Enable ExecShield

    ExecShield describes kernel features that provide protection against exploitation of memory corruption errors such as buffer overflows. These featu...
    Group
  • kernel.kptr_restrict

    Configure exposition of kernel pointer addresses
    Value
  • Enable ExecShield via sysctl

    By default on Red Hat Enterprise Linux 7 64-bit systems, ExecShield is enabled and can only be disabled if the hardware does not support ExecShield...
    Rule Medium Severity
  • Restrict Exposed Kernel Pointer Addresses Access

    To set the runtime status of the <code>kernel.kptr_restrict</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel.kptr_r...
    Rule Medium Severity
  • Enable Randomized Layout of Virtual Address Space

    To set the runtime status of the <code>kernel.randomize_va_space</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel.r...
    Rule Medium Severity
  • Enable Execute Disable (XD) or No Execute (NX) Support on x86 Systems

    Recent processors in the x86 family support the ability to prevent code execution on a per memory page basis. Generically and on AMD processors, th...
    Group

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